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Separation techniques 25Mb

Classifying Matter Matter (solid, liquid gas) Pure substance Impure substance (mixture) Element Compound non metal metal mix 2 or more react 2 or more separate by physical methods (SEE LECTURE1) separate by chemical reaction

Notes 1. Matter is anything with mass that takes up space 2. Pure substances are single substances. (eg distilled water contains 100% water) 3. Mixtures contain two or more substances mixed in any ratio or proportion 4. Elements are special substances which contain just one type of atom (eg sodium Na contains Na atoms only) 5. Compounds are substances that contain two or more elements chemically combined together. They are usually hard to separate.

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